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#53951 Bangla Language & Literature আলো Level 0

Plank's Constant--

  1. A 6.55x10-24 erg sec
  2. B 6.65x10-27 erg sec
  3. C 6.72x10-25 erg sec
  4. D 6.74x10-26 erg sec
Answer: B - 6.65x10-27 erg sec

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